Presentation 1998/10/21
Visualization of Supercurrent Distribution in YBCO Thin Films
M. Yamashita, T. Kondo, T. Kiwa, O. Morikawa, M. Tonouchi, M. Hangyo, M. Tani, K. Sakai,
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Abstract(in English) We previously reported that teraherts(THz) radiation can emit from YBCO thin films irradiation with femto second laser pulses and explained its mechanism as an ultrafast supercurrent modulation. We proposed and demonstrated a new method to obtain two dimensional supercurrent distribution i YBCO thin film. The distribution images of the transport and persisting currents were obtained and their characteristics were qualitatived explained by the Bean model. This result revealed that the supercurrent distribution imaging system can be constructed based on the THz emission-detection system.
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Keyword(in English) THz radiation / fs laser pulse / YBCO films / supercurrent distribution / Bean model
Paper # LQE98-86
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Committee LQE
Conference Date 1998/10/21(1days)
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Registration To Lasers and Quantum Electronics (LQE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Visualization of Supercurrent Distribution in YBCO Thin Films
Sub Title (in English)
Keyword(1) THz radiation
Keyword(2) fs laser pulse
Keyword(3) YBCO films
Keyword(4) supercurrent distribution
Keyword(5) Bean model
1st Author's Name M. Yamashita
1st Author's Affiliation Research Center for Superconducting Materials and Electronica, Osaka University()
2nd Author's Name T. Kondo
2nd Author's Affiliation Research Center for Superconducting Materials and Electronica, Osaka University
3rd Author's Name T. Kiwa
3rd Author's Affiliation Research Center for Superconducting Materials and Electronica, Osaka University
4th Author's Name O. Morikawa
4th Author's Affiliation Research Center for Superconducting Materials and Electronica, Osaka University
5th Author's Name M. Tonouchi
5th Author's Affiliation Research Center for Superconducting Materials and Electronica, Osaka University:CREST, Japan Sciences and Technology Corporation(JST)
6th Author's Name M. Hangyo
6th Author's Affiliation Research Center for Superconducting Materials and Electronica, Osaka University
7th Author's Name M. Tani
7th Author's Affiliation Kansai Advanced Research Center, Communications Research Laboratory
8th Author's Name K. Sakai
8th Author's Affiliation Kansai Advanced Research Center, Communications Research Laboratory
Date 1998/10/21
Paper # LQE98-86
Volume (vol) vol.98
Number (no) 342
Page pp.pp.-
#Pages 6
Date of Issue